US7943541B2 - Sintered refractory product exhibiting enhanced thermal shock resistance - Google Patents

Sintered refractory product exhibiting enhanced thermal shock resistance Download PDF

Info

Publication number
US7943541B2
US7943541B2 US12/067,810 US6781006A US7943541B2 US 7943541 B2 US7943541 B2 US 7943541B2 US 6781006 A US6781006 A US 6781006A US 7943541 B2 US7943541 B2 US 7943541B2
Authority
US
United States
Prior art keywords
product according
oxides
weight
basis
refractory product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US12/067,810
Other languages
English (en)
Other versions
US20090221415A1 (en
Inventor
Richard Avedikian
Michel Bobo
Thibault Champion
Christian His
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Centre de Recherche et dEtudes Europeen SAS
Original Assignee
Saint Gobain Centre de Recherche et dEtudes Europeen SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Centre de Recherche et dEtudes Europeen SAS filed Critical Saint Gobain Centre de Recherche et dEtudes Europeen SAS
Assigned to SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN reassignment SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HIS, CHRISTIAN, AVEDIKIAN, RICHARD, BOBO, MICHEL, CHAMPION, THIBAULT
Publication of US20090221415A1 publication Critical patent/US20090221415A1/en
Application granted granted Critical
Publication of US7943541B2 publication Critical patent/US7943541B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/105—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
    • C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/106—Refractories from grain sized mixtures containing zirconium oxide or zircon (ZrSiO4)
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/185—Mullite 3Al2O3-2SiO2
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62655—Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
    • C04B35/6266—Humidity controlled drying
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C04B35/6306—Binders based on phosphoric acids or phosphates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C04B35/6306—Binders based on phosphoric acids or phosphates
    • C04B35/6309—Aluminium phosphates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C04B2235/3248—Zirconates or hafnates, e.g. zircon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5292—Flakes, platelets or plates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/604—Pressing at temperatures other than sintering temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

Definitions

  • the invention relates to novel sintered refractory products exhibiting enhanced thermal shock resistance.
  • fused-cast products and sintered products may be distinguished.
  • fused-cast products most often have an intergranular glassy phase linking the crystallized grains.
  • the problems posed by sintered products and fused-cast products and the technical solutions for solving them are thus generally different.
  • a mixture developed for manufacturing a fused-cast product therefore is not a priori usable as such for manufacturing a sintered product and vice versa.
  • Sintered products depending on their chemical composition and mode of preparation, are intended to be used in a wide variety of industrial applications.
  • sintered products include, in particular, alumina-zirconia-silica products, usually referred to as AZS, as well as so-called aluminous products, which are used, in particular, in certain regions of glassmaking furnaces.
  • AZS alumina-zirconia-silica products
  • aluminous products which are used, in particular, in certain regions of glassmaking furnaces.
  • Products such are those described in patent FR 2 552 756 in the name of Emhart Industries are generally appropriate for such an application.
  • EP 0 404 610 are refractory mixtures containing monoclinic zirconia, from which products exhibiting outstanding thermal shock resistance can be obtained.
  • the object of the present invention is therefore to provide a refractory product exhibiting enhanced thermal shock resistance and hot mechanical strength, corrosion resistance and porosity properties similar to or better than those of presently used refractory products.
  • this object is achieved by means of a sintered refractory product having the following average chemical composition, the percentages being by weight on the basis of the oxides:
  • the sintered refractory product of the invention exhibits surprisingly enhanced thermal shock resistance.
  • the product according to the invention also has one or more of the optional following characteristics:
  • the invention also relates to the use of a refractory product according to the invention such as a shaped refractory part for shaping molten glass to be used as a consumable layer or a refractory lining, in particular in the combustion chamber of an industrial facility.
  • a refractory product according to the invention such as a shaped refractory part for shaping molten glass to be used as a consumable layer or a refractory lining, in particular in the combustion chamber of an industrial facility.
  • mullite-zirconia grain is meant a refractory grain produced by sintering or fusing having a chemical composition containing, as its major constituents, alumina (Al 2 O 3 ), silica (SiO 2 ) and zirconia (ZrO 2 ), wherein silica and alumina are present in the form of 2 SiO 2 -3 Al 2 O 3 (mullite).
  • Alumina (Al 2 O 3 ), silica (SiO 2 ) and zirconia (ZrO 2 ) thus are the three main constituents, by weight, of a mullite-zirconia grain.
  • the “size of a grain” refers to its largest dimension. It is considered that, by definition, a “grain” has a size of less than 4 mm.
  • a manufacturing process comprising the following consecutive steps:
  • Steps a) to e) are steps conventionally carried out for the manufacture of sintered products.
  • the starting charge is made of a variety of raw materials, the chemical composition and granulometric distribution of which may vary. According to the invention, it contains, the percentages being by weight on the basis of the refractory oxides, 17 to 85% of mullite-zirconia grains, as well as any refractory material allowing the desired overall composition to be achieved, such as tabular alumina, electrofused corundum, zircon, chromium oxide, in particular sintered in the form of chamotte, electrofused materials, such as those based on Al 2 O 3 —ZrO 2 —SiO 2 , alumina, fumed silica, monoclinic and/or stabilized zirconia, chromium oxide pigment, and the like.
  • the starting charge is determined so that the product obtained after step e) conforms to the invention and further exhibits one or preferably several of the preferred characteristics of the product according to the invention.
  • the starting charge preferably contains, as a percentage by weight on the basis of the oxides, at least 1%, preferably at least 1.5% of mullite-zirconia grains having a size of 0.3 mm or less. These grains may be added in any appropriate granulometric class, such as, without any limitation thereto, 0-0.7 mm, 0-0.3 mm or 0-0.15 mm.
  • the starting charge may also contain one or more additives in a particulate form so as to provide the starting charge with sufficient plasticity during the shaping step b) and for providing the preform obtained at the end of step d) with sufficient mechanical strength.
  • additives are non-limiting. In particular, the amounts conventionally used in known sintering processes are appropriate.
  • Certain oxides may be introduced via the additives.
  • Non-limiting examples of usable additives include:
  • the refractory mixture contains a chemical or hydraulic binder, it is then a concrete, which, for example, may be used in practice via vibration casting.
  • the starting charge contains less than 1% MgO, by weight on the basis of the oxides, and more preferably, contains no MgO, except in the form of impurities, i.e. in amounts of 0.5% or less, preferably less than 0.2%.
  • impurities i.e. in amounts of 0.5% or less, preferably less than 0.2%.
  • the starting charge exhibits the following average chemical composition, as percentages by weight on the basis of the refractory oxides:
  • the mixture of the various starting charge constituents is continued until a substantially homogeneous starting charge is obtained.
  • step b) the charge is shaped and placed in a mold.
  • a specific pressure of 400 to 800 kg/cm 2 is appropriate for a non-plastic paste.
  • Pressing is preferably carried out uniaxally or isostatically, for example using a hydraulic press. It may advantageously be preceded by a manual or pneumatic and/or vibrational ramming operation.
  • Drying in step d) can be carried out at a moderately high temperature.
  • it is carried out at a temperature in the range of room temperature to 200° C. It conventionally lasts between 10 hours and one week, depending on the format of the preform, until the residual moisture content of the preform is less than 0.5%.
  • the dried preform is then fired (step e)) in order to sinter it.
  • the sintering operation is well known to those skilled in the art. Sintering corresponds to a thermal consolidation of the material. It is generally accompanied by a decrease in porosity and by a dimensional shrinkage.
  • the sintering temperature depends on the starting mixture composition, but a temperature between 1300 and 1800° C. is appropriate in most cases. Sintering is preferably carried out in an oxidizing atmosphere, and more preferably in air, preferably at atmospheric pressure.
  • the firing period between about 1 and 15 days cold to cold, depends on the materials and also on the size and shape of the refractory products to be manufactured.
  • Step e) transforms the preform into a refractory product according to the invention, which is particularly useful as a shaped refractory part used for shaping molten glass or as a refractory tile in the combustion chamber of an industrial facility.
  • the preform is fired in a firing furnace.
  • the block according to the invention results from a sintering within a firing furnace, so that each of its sides is heated in substantially the same manner, before being placed in its operational position. Therefore, this prevents any dependence of the temperature gradient on the position of a given point on the outer surface of the block.
  • the product according to the invention thus exhibits a homogeneous density and microstructure throughout, thus resulting in improved resistance to thermal shock, to corrosion by water vapor, and to corrosion by molten glass.
  • refractory products according to the invention may then be used directly or after having been assembled by means of appropriate expansion joints, according to techniques well known to those skilled in the art.
  • the way the amounts of constituents are determined in the refractory product is well known to a person skilled in the art.
  • a person skilled in the art is aware that the mullite-zirconia grains as well as the oxides Al 2 O 3 , SiO 2 , ZrO 2 and Cr 2 O 3 present in the starting charge are also found in the sintered refractory product.
  • the starting charge composition may however change, depending on those quantities and on the nature of the additives present in said charge.
  • the raw materials employed were chosen from:
  • step a raw materials were metered in such a way that the starting charge had the desired average mineral chemical composition by weight, and then mixed in the presence of water and at least one dispersant, such as sodium phosphate.
  • the starting charge was then cast in a mold to form a green preform having sufficient mechanical strength to be manipulated. It was then dried for 12 hours at 110° C. The preform was finally sintered at a temperature of 1350° C. or 1630° C. so as to form a refractory block.
  • Samples were taken from the various block examples in order to prepare specimens in the form of 125 ⁇ 25 ⁇ 25 mm bars.
  • thermo shock resistance properties In order to measure thermal shock resistance properties, a standardized test known as PRE III. 26/PRE/R.5.1/78 was adopted. This test allows the thermal shock behaviour to be assessed using the relative loss of flexural strength (DELTA MOR) after one or more cycles, each consisting in heating the test specimen from room temperature (20° C.) up to a maximum temperature T of 1200° C., keeping the specimen at this temperature T for 30 minutes and then plunging the specimen into cold water.
  • DELTA MOR relative loss of flexural strength
  • the MOR is the modulus of rupture.
  • MOR20 corresponds to the MOR value of the sample at 20° C. before any thermal shock cycle
  • MoRxcycle corresponds to the MOR value after “x” cycle(s) of thermal shock.
  • compositions of the tested products as well as their characteristics are shown in Table 1.
  • the products according to the invention result in an enhancement of thermal shock resistance even after they have undergone water vapor corrosion.
  • examples 11 to 17 exhibit a molten glass corrosion resistance at least equivalent to that of the reference products.
  • Table 3 illustrates the benefit of the presence of grains having sizes smaller than 0.7 mm.
  • the used mullite-zirconia grain mixtures in the 0-0.7 mm range contain generally between 30 and 50% by weight of grains smaller than 0.3 mm.
  • example F contains between 1.5 and 2.5% of mullite-zirconia grains relative to the total composition weight, with a size of less than 0.3 mm.
  • the product according to the invention also contains at least 1%, preferably at least 1.5%, of mullite-zirconia grains having a size of 0.3 mm or less, the percentages being by weight on the basis of the oxides.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
US12/067,810 2005-09-26 2006-09-25 Sintered refractory product exhibiting enhanced thermal shock resistance Expired - Fee Related US7943541B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0509814 2005-09-26
FR0509814A FR2891271B1 (fr) 2005-09-26 2005-09-26 Produit refractaire fritte presentant une resistance aux chocs thermiques amelioree.
PCT/FR2006/002180 WO2007034092A1 (fr) 2005-09-26 2006-09-25 Produit refractaire fritte presentant une resistance aux chocs thermiques amelioree

Publications (2)

Publication Number Publication Date
US20090221415A1 US20090221415A1 (en) 2009-09-03
US7943541B2 true US7943541B2 (en) 2011-05-17

Family

ID=36609144

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/067,810 Expired - Fee Related US7943541B2 (en) 2005-09-26 2006-09-25 Sintered refractory product exhibiting enhanced thermal shock resistance

Country Status (15)

Country Link
US (1) US7943541B2 (fr)
EP (1) EP1928805B1 (fr)
JP (2) JP2009509898A (fr)
KR (1) KR20080058353A (fr)
CN (1) CN101300207B (fr)
AU (1) AU2006293837A1 (fr)
BR (1) BRPI0616343B1 (fr)
CA (1) CA2623510C (fr)
EA (1) EA013699B1 (fr)
FR (1) FR2891271B1 (fr)
HU (1) HUE030531T2 (fr)
PL (1) PL1928805T3 (fr)
UA (1) UA91236C2 (fr)
WO (1) WO2007034092A1 (fr)
ZA (1) ZA200802686B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140137603A1 (en) * 2011-07-20 2014-05-22 Saint-Gobain Centre De Recherches Et D'etudes Europeen Feeder channel for molten glass
US9758434B2 (en) 2015-06-01 2017-09-12 Saint-Gobain Ceramics & Plastics, Inc. Refractory articles and methods for forming same
US20180327314A1 (en) * 2015-11-05 2018-11-15 Center For Abrasives And Refractories Research & Development C.A.R.R.D. Gmbh Sintered zirconia mullite refractory composite, methods for its production and use thereof

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2937636B1 (fr) * 2008-10-29 2010-11-12 Saint Gobain Ct Recherches Beton frais auto-nivelant
CN101580396B (zh) * 2009-06-23 2012-07-04 李玉生 石英连熔炉炉体保温材料
JP5776548B2 (ja) * 2010-03-25 2015-09-09 日本電気硝子株式会社 ガラス製造装置の製造方法及びガラス製造装置
CN102032794B (zh) * 2010-12-20 2012-06-06 江苏三恒高技术窑具有限公司 软磁铁氧体氮窑烧结用台板
JP5757116B2 (ja) * 2011-03-17 2015-07-29 日本電気硝子株式会社 ガラス製造容器用充填材、ガラス製造容器用充填材層、ガラス製造装置及びガラス製造装置の製造方法
FR2974081B1 (fr) * 2011-04-15 2016-02-26 Saint Gobain Ct Recherches Produit d'oxydes de chrome, de zirconium et d'hafnium
CN102295461B (zh) * 2011-06-02 2013-10-30 江苏君耀耐磨耐火材料有限公司 石油化工加热炉用红砖及其制备工艺
KR101903355B1 (ko) 2012-01-11 2018-11-22 생-고뱅 세라믹스 앤드 플라스틱스, 인코포레이티드 내화체 및 내화체를 이용한 유리판 성형방법
EP2864731B1 (fr) 2012-06-22 2019-06-12 Imertech Sas Compositions céramiques comprenant de l'alumine
FR2994177B1 (fr) * 2012-08-01 2014-08-15 Saint Gobain Ct Recherches Particule frittee a base d'alumine
FR3008967B1 (fr) * 2013-07-26 2016-12-30 Saint-Gobain Centre De Rech Et D'Etudes Europeen Produit a haute teneur en alumine
CN103496992B (zh) * 2013-09-22 2015-04-01 郑州亨瑞达新材料有限公司 一种铬锆莫来石耐火材料及其制备方法
FR3026186B1 (fr) 2014-09-19 2016-12-09 Saint-Gobain Centre De Rech Et D'Etudes Europeen Procede de controle non destructif
CN104529481B (zh) * 2014-12-05 2016-04-20 中钢集团洛阳耐火材料研究院有限公司 一种Al2O3-Cr2O3耐火骨料及制备方法
US11814317B2 (en) 2015-02-24 2023-11-14 Saint-Gobain Ceramics & Plastics, Inc. Refractory article and method of making
EP3291934A4 (fr) * 2015-05-07 2018-12-05 Les Produits Industriels de Haute Temperature Pyrotek Inc. Article composé d'un matériau réfractaire pour un contact avec un métal, ou un alliage, liquide, procédé de fabrication, utilisation et procédé d'utilisation de ce dernier
KR101659437B1 (ko) * 2015-12-10 2016-09-26 에프케이엔지니어링 주식회사 개선된 내열성 및 내화성을 갖는 세라믹 블록
KR101653285B1 (ko) * 2016-02-15 2016-09-01 박윤정 연탄재와 커피슬러지를 주재로 한 경량 내화성형체 및 그 제조방법
FR3048428B1 (fr) * 2016-03-07 2020-09-25 Saint Gobain Ct Recherches Four de dephosphoration a induction
KR102005481B1 (ko) * 2016-08-26 2019-07-30 한국중부발전(주) 발전소 가스터빈의 연소실 내부 라이닝의 조성물 및 그 제조방법
CN106927840B (zh) * 2017-04-05 2019-12-10 上海材料研究所 抗热震复相陶瓷材料及基于该材料的陶瓷漏嘴的制备
FR3068351B1 (fr) * 2017-07-03 2022-01-28 Sarp Ind Materiau refractaire comprenant une matrice mullite-zircone avec additifs
FR3071248B1 (fr) * 2017-09-19 2020-09-25 Saint Gobain Ct Recherches Mousse ceramique
CN109336574B (zh) * 2018-11-29 2022-03-29 贵州大东风机械有限公司 一种耐用型坩埚及其成型方法
RU2710341C1 (ru) * 2019-03-18 2019-12-25 Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) Керамический материал с низкой температурой спекания на основе системы диоксида циркония - оксида алюминия - оксида кремния
CN110078484B (zh) * 2019-05-17 2021-10-29 山东工业职业学院 一种刚玉莫来石坩埚及其制备方法
CN112811888A (zh) * 2021-04-08 2021-05-18 铜陵旭时新材料科技有限公司 一种中频感应炉炉底抗渗浇注料

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290814A (en) 1979-08-17 1981-09-22 Dresser Industries, Inc. High alumina brick
FR2552756A1 (fr) 1983-09-30 1985-04-05 Emhart Ind Compositions refractaires ameliorees resistant aux alcalins
US4585485A (en) 1983-01-24 1986-04-29 Hiroshi Shikano Refractory sliding nozzle plate
US4646950A (en) 1983-10-29 1987-03-03 Harima Refractory Co., Ltd. Sliding nozzle plate
US5053366A (en) 1989-05-26 1991-10-01 Savoie Refractaires Refractory compositions containing monoclinic zirconia and articles formed from these compositions exhibiting improved mechanical strength at high temperatures and improved resistance to thermal shocks
JPH0680477A (ja) 1992-08-27 1994-03-22 Harima Ceramic Co Ltd 取鍋敷用不定形耐火物
JP2002220290A (ja) 2001-01-16 2002-08-09 Kawasaki Refract Co Ltd キャスタブル耐火物
RU2196118C2 (ru) 2001-04-06 2003-01-10 Закрытое акционерное общество "Научно-технический центр "Бакор" Способ изготовления хромалюмоциркониевых огнеупоров
US6509287B2 (en) * 2000-06-20 2003-01-21 Societe Europeenne Des Produits Refractaires Fused cast AZS products of reduced cost
WO2003043953A1 (fr) * 2001-11-20 2003-05-30 Saint-Gobain Centre De Recherches Et D'etudes Europeen Composition réfractaire non façonnée, destinée notamment a la réalisation de soles d'un four de verrerie
US20090062106A1 (en) * 2003-09-01 2009-03-05 Saint-Gobain Centre De Recherches Et D ' Etudes Europeen Hollow piece for producing a sintered refractory product exhibiting improved bubbling behaviour

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897913A (fr) * 1972-03-27 1973-12-13
FR2624851B1 (fr) * 1987-12-16 1993-05-07 Corhart Refractories Co Composition refractaire de grains d'alumine-zirconium-silice pour la fabrication d'articles refractaires, notamment carrelage, revetement refractaire de fours ou analogues
US4904626A (en) * 1989-01-24 1990-02-27 Union Carbide Corporation Zirconia mullite/boron nitride composites
JPH04130051A (ja) * 1990-09-17 1992-05-01 Kurosaki Refract Co Ltd Ａｌ↓２Ｏ↓３―Ｃｒ↓２Ｏ↓３―ＺｒＯ↓２質溶銑予備処理容器用耐火物
JPH06277825A (ja) * 1992-10-21 1994-10-04 Tokyo Yogyo Co Ltd スライドゲート用下部ノズルレンガ
JPH06219823A (ja) * 1993-01-25 1994-08-09 Tokyo Yogyo Co Ltd スライドゲート用上部ノズルレンガ
JPH08217533A (ja) * 1995-02-20 1996-08-27 Nippon Steel Corp ストッパーヘッド
JP4231163B2 (ja) * 1999-08-18 2009-02-25 黒崎播磨株式会社 通気性耐火物
JP2003335573A (ja) * 2002-05-22 2003-11-25 Kawasaki Refract Co Ltd スリット式ガス吹き込みプラグ
FR2859203B1 (fr) * 2003-09-01 2006-02-10 Saint Gobain Ct Recherches Piece crue destinee a la fabrication d'un produit refractaire fritte presentant un comportement au bullage ameliore

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290814A (en) 1979-08-17 1981-09-22 Dresser Industries, Inc. High alumina brick
US4585485A (en) 1983-01-24 1986-04-29 Hiroshi Shikano Refractory sliding nozzle plate
FR2552756A1 (fr) 1983-09-30 1985-04-05 Emhart Ind Compositions refractaires ameliorees resistant aux alcalins
GB2147287A (en) 1983-09-30 1985-05-09 Emhart Ind Alkali-resistant refractory compositions
US4646950A (en) 1983-10-29 1987-03-03 Harima Refractory Co., Ltd. Sliding nozzle plate
EP0404610B1 (fr) 1989-05-26 1994-01-26 Savoie Refractaires Compositions réfractaires contenant de la zircone monoclinique et articles formés à partir de ces compositions présentant une résistance mécanique à chaud et une résistance aux chocs thermiques améliorées
US5053366A (en) 1989-05-26 1991-10-01 Savoie Refractaires Refractory compositions containing monoclinic zirconia and articles formed from these compositions exhibiting improved mechanical strength at high temperatures and improved resistance to thermal shocks
JPH0680477A (ja) 1992-08-27 1994-03-22 Harima Ceramic Co Ltd 取鍋敷用不定形耐火物
US6509287B2 (en) * 2000-06-20 2003-01-21 Societe Europeenne Des Produits Refractaires Fused cast AZS products of reduced cost
JP2002220290A (ja) 2001-01-16 2002-08-09 Kawasaki Refract Co Ltd キャスタブル耐火物
RU2196118C2 (ru) 2001-04-06 2003-01-10 Закрытое акционерное общество "Научно-технический центр "Бакор" Способ изготовления хромалюмоциркониевых огнеупоров
WO2003043953A1 (fr) * 2001-11-20 2003-05-30 Saint-Gobain Centre De Recherches Et D'etudes Europeen Composition réfractaire non façonnée, destinée notamment a la réalisation de soles d'un four de verrerie
US7074733B2 (en) * 2001-11-20 2006-07-11 Saint-Gobain Centre De Recherches Et D'etudes Europeen Unwrought refractory composition, in particular for producing glass furnace hearths
US20090062106A1 (en) * 2003-09-01 2009-03-05 Saint-Gobain Centre De Recherches Et D ' Etudes Europeen Hollow piece for producing a sintered refractory product exhibiting improved bubbling behaviour

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140137603A1 (en) * 2011-07-20 2014-05-22 Saint-Gobain Centre De Recherches Et D'etudes Europeen Feeder channel for molten glass
US9550692B2 (en) * 2011-07-20 2017-01-24 Saint-Gobain Centre De Recherches Et D'etudes Method of manufacturing a feeder channel for molten glass
US9758434B2 (en) 2015-06-01 2017-09-12 Saint-Gobain Ceramics & Plastics, Inc. Refractory articles and methods for forming same
US10093580B2 (en) 2015-06-01 2018-10-09 Saint-Gobain Ceramics & Plastics, Inc. Refractory articles and methods for forming same
US20180327314A1 (en) * 2015-11-05 2018-11-15 Center For Abrasives And Refractories Research & Development C.A.R.R.D. Gmbh Sintered zirconia mullite refractory composite, methods for its production and use thereof
US11208354B2 (en) * 2015-11-05 2021-12-28 Imertech Sas Sintered zirconia mullite refractory composite, methods for its production and use thereof

Also Published As

Publication number Publication date
CA2623510A1 (fr) 2007-03-29
HUE030531T2 (hu) 2017-05-29
CN101300207B (zh) 2012-07-04
EA200800644A1 (ru) 2008-08-29
ZA200802686B (en) 2009-08-26
KR20080058353A (ko) 2008-06-25
UA91236C2 (ru) 2010-07-12
CA2623510C (fr) 2013-04-02
US20090221415A1 (en) 2009-09-03
BRPI0616343A2 (pt) 2011-06-14
CN101300207A (zh) 2008-11-05
JP5879414B2 (ja) 2016-03-08
WO2007034092A1 (fr) 2007-03-29
EA013699B1 (ru) 2010-06-30
FR2891271A1 (fr) 2007-03-30
BRPI0616343B1 (pt) 2017-12-12
PL1928805T3 (pl) 2017-04-28
EP1928805A1 (fr) 2008-06-11
JP2009509898A (ja) 2009-03-12
AU2006293837A1 (en) 2007-03-29
JP2015038031A (ja) 2015-02-26
FR2891271B1 (fr) 2008-01-11
EP1928805B1 (fr) 2016-11-09

Similar Documents

Publication Publication Date Title
US7943541B2 (en) Sintered refractory product exhibiting enhanced thermal shock resistance
KR101552717B1 (ko) 유리 용융로를 위한 내화성 조성물
JP5656629B2 (ja) Ａｚｓ耐火性組成物
US8376318B2 (en) Zirconia powder
US10167233B2 (en) Product having a high alumina content
KR20090068248A (ko) 지르콘 및 산화니오븀 또는 산화탄탈륨계 소결 및 도핑 생성물
KR20130093608A (ko) 크롬 옥사이드 내화 재료
US5053366A (en) Refractory compositions containing monoclinic zirconia and articles formed from these compositions exhibiting improved mechanical strength at high temperatures and improved resistance to thermal shocks
JP2016503372A (ja) 酸化クロム製品
US8187990B2 (en) Hollow piece for producing a sintered refractory product exhibiting improved bubbling behaviour
JP2007303011A (ja) 無機繊維及びそれを用いた不定形耐火物
US20070015655A1 (en) Hollow piece for producing a sintered refractory product exhibiting improved bubbling behaviour
US8470088B2 (en) Cast bodies, castable compositions, and methods for their production
CN105060798B (zh) 自流平混凝土
JP2015081225A (ja) 高クロミア質キャスタブル耐火物と、それを用いたプレキャストブロック、及びそれらの一方、または両方を内張りした廃棄物溶融炉
CZ20003060A3 (cs) Bázická volně tekoucí licí hmota a tvarované díly vyrobené z této hmoty
AU2008333636B2 (en) Fireproof ceramic mix, fireproof ceramic molded body formed of said mix, and the use thereof
JP2017508710A (ja) 改善された流動性を有する耐火物
EP3421571B1 (fr) Bloc réfractaire préfabriqué pour four à coke
JP2021147275A (ja) マグネシア−スピネル質耐火れんが
US11905198B2 (en) Product containing chromium 3 oxide for glass furnace
Möhmel et al. The influence of different raw materials on the bahaviour of low cement castables
JPH1053457A (ja) アルミナ・ジルコン・バデライト系耐火物およびアルミナ・ジルコン・ジルコニア系耐火物

Legal Events

Date Code Title Description
AS Assignment

Owner name: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EURO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AVEDIKIAN, RICHARD;BOBO, MICHEL;CHAMPION, THIBAULT;AND OTHERS;REEL/FRAME:021044/0620;SIGNING DATES FROM 20080408 TO 20080415

Owner name: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EURO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AVEDIKIAN, RICHARD;BOBO, MICHEL;CHAMPION, THIBAULT;AND OTHERS;SIGNING DATES FROM 20080408 TO 20080415;REEL/FRAME:021044/0620

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

LAPS Lapse for failure to pay maintenance fees

Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20230517